Improvement in portable furnaces



VV.. D. ROBERTSON.

@OMB STOYMBO'LEF" PAmNTEDMAR-211871 WITNESSES. [NVENVTOR @hwg fm@ @anni effim- WILLIAM p EoEEETsoN, 0E KNOXVILLE, TENNESSEE.

Letters Patent No. 112,965, dated March 21, 1871.

IMPROVEMENT lN PORTABLE FURNAC'ES.

The Schedule referred to in these Letters Patecut and making part of the 53m0- I, WILLIAM D. ROBERTSON, of Knoxville, in the county of Knox and State of Tennessee, have invented a new and useful Combined Stove and Boiler, of which the following is a speoiication.

Nfl-turc and Objects of the Intention.

The object of my invention is to provide a simple, portable, and convenient apparatus for boiling water or generating steam, adapted for use indyeing establishments, laundries, 86o., and for culinary or other purposes where it is required to use boiling water or steam under moderate pressure.

The apparatus consists of three parts, as shown, viz: a bottom or stove portion for containing the fuel, a hot-air chamber restinf,r thereon, and aboiler, which may be provided with a cover either of thev ordinary kind or steam-tight.

.dAIpipe for the escape of smoke, Ste., is alsor prov1 er.

wood.

It has a door, G, and draft-regulator g, of any usual kind.

D is a drum or hot-air chamber,- of shape adapted to fit on the stove F, and having partition plates d d' at top and bottom, of annular or other proper form.

The lower one of these, ll, has suflcient opening in tbc clear to allow the bottom of the boiler to t accurately thereto and prevent the passage of smoke and heated air, except through the iiueE; more than one tine may be provided, if necessary "or desirable.

Immediately over the ue E, and between it and the stove-pipe aperture I, is placed a deflecting plate,'A, of suicient width and proper form to extend across the space between the boiler G and the rear of the drum, and compel the products of combustion generatedA in the stove below, after passing through the flue E, to make the circuit 'of the boiler O before' arriving at the stove-pipe hole I, through which they finally escape.

O represents the boiler, the bottom of'- which corresponds in shape and dimensions to the clear aperture of the partition plate d, as aforesaid, the depth of the boiler being equal to that of the drum; its top, which is provided with a rin` or ange, conforming to the aperture of the top partition plate d'.

The boiler is provided with a lid or cover, H, which may he tted steam-tight thereto. The operation of the apparatus Vis `so obvious as scarcely to require particular description; it is, however, apparent that the heated products of combustion during their upward progress are completely utilized by being brought in contact with every part of the.v

bottom and sides of the boiler.

It is perhaps unnecessary to state that no particular shape of the respective parts is essential to their successfui operation, and'that each and all of them may be made of any suitable material, as galvanized sheetiron, cast-iron, or other substance.

Claim.

I claim as my invention- The combined stove and boiler, constructed with a furnace, F, drum D, boiler or heater O, due E, partitions d d', and deecting plate A, all arranged to operate substantially as and for the purposesherein set forth.

WILLIAM D. ROBERTSON. Witnesses: i

CHARLES SEYMoU-E, Oomvus KNIGHT. 

